A5100688275- Advanced ceramic materials synthesis
- Advanced materials and composites
- MXene and MAX Phase Materials
- Aluminum Alloys Composites Properties
- Graphene research and applications
- Bone Tissue Engineering Materials
- Carbon Nanotubes in Composites
- Welding Techniques and Residual Stresses
- Laser and Thermal Forming Techniques
- Ferroelectric and Piezoelectric Materials
- Microwave Dielectric Ceramics Synthesis
- Silicon Carbide Semiconductor Technologies
- Boron and Carbon Nanomaterials Research
- Electromagnetic wave absorption materials
- Metal Forming Simulation Techniques
- Advanced Welding Techniques Analysis
- Catalytic Processes in Materials Science
- Thermal properties of materials
- Magnetic Properties and Synthesis of Ferrites
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Photocatalysis Techniques
- Nuclear Materials and Properties
- Titanium Alloys Microstructure and Properties
- Diamond and Carbon-based Materials Research
- Copper-based nanomaterials and applications
Anyang University
2022-2024
Hanyang University
2021-2024
Wuhan University of Technology
2017-2021
Yeungnam University
2010-2018
Materials Science & Engineering
2013-2014
Sangji University
2011
Chiba University
2010
Korea Atomic Energy Research Institute
2007-2010
Pusan National University
2009
Pohang University of Science and Technology
2008
Novel accordion structure Ti<sub>3</sub>C<sub>2</sub>–Ni<sub>0.5</sub>Zn<sub>0.5</sub>Fe<sub>2</sub>O<sub>4</sub>composites with nice electromagnetic wave absorption properties.
Spark Plasma Sintering (SPS) involves pressure driven powder consolidation under pulsed direct electric current, usually using graphite dies.. In general, the SPS process results in a finer grain s...
Graphene layers grown on 6H-SiC(0001) were irradiated with 1 MeV electron beam to functionalize its surface. A surface analysis using atomic force microscopy, the near edge X-ray adsorption fine structure spectra of C K-edge, and photoemission spectroscopy suggests that irradiation in ambient condition can induce oxidation graphene layer.
In this study, we propose a method for predicting welding deformation caused by multi-pass using the thermal elastic–plastic finite element (TEP-FEM) considering interpass temperature. This increases temperature, which has not been considered in existing TEP-FEM, from 200 °C to 1000 °C, and simultaneously performs mechanical analyses. addition, can also evaluate temperature history time it takes weld. By method, angular distortion prediction was reduced 16.75 mm 10.9 compared case where...
A mixture of Al2O3 and GdAlO3 was melted rapid quenched to produce an amorphous film. Dense eutectic composites were consolidated from ground powder using both conventional spark plasma sintering (SPS). Conventional at temperatures above 1600°C for 24 h required complete sintering. However, SPS could be obtained between 1300 1500°C with no soaking. The technique consolidate ultrafine structure material, whilst not successful owing grain growth. combination quenching resulted in Al2O3–GdAlO3...
The one-pot fabrication of various silver nanostructures on substrates is achieved through electron beam irradiation the surface dodecanethiolate (Ag(I)- SC12). Ag(I)-SC12 films are simply prepared by spin-coating salt and dodecanethiol solution. Various such as particles, rods, cubes, networks from Ag(I)- SC12 film with an voltage 0.3 to 2 MV, current 0.06 0.24 mA, and/or time 30 80 s. morphology chemical composition irradiated samples characterized scanning microscopy (SEM), x-ray...
Abstract Residual thermal stresses in SiC/Ti 3 SiC 2 /SiC joining couples were calculated by Raman spectra and simulated finite element analysis, then relaxed successfully postannealing. The results showed that the residual stress between Ti was about on order of 1 GP a when cooling from 1300°C to 25°C. can be recovery structure disorders during When joints postannealed at 900°C, bending strength reached 156.9 ± 13.5 MP a, which almost twice as‐obtained joints. Furthermore, failure occurred...
Silicon carbide (SiC) monoliths were synthesised using nano-size SiC powder mixed with/without polysilazane by hot pressing at 1750°C for 1 h under an applied pressure of 20 MPa in N2 or Ar atmosphere. The effects and sintering atmosphere on the microstructure hardness examined. grain sizes ceramics sintered with without 161 605 nm, while density those samples 96.5 98.1%, respectively. It was shown that Si2N2O formed SiC/polysilazane composite N2. In addition, sample followed revealed a...
Nanoporous hydroxyapatite (HA) ceramics were consolidated using conventional or free sintering, spark plasma sintering (SPS) and flash (FS). Microstructures formed during electric field assisted which includes SPS FS revealed that nanovoids retained within HA grains processing. After however, no detected by transmission electron microscopy (TEM). The observed confirmed not induced beam damaging, showed either a round faceted shape with diameters ranging between 5 10 nm. In-situ TEM heating...
SiC fibre reinforced SiC–matrix ceramic composites were fabricated by electrophoretic deposition (EPD) combined with ultrasonication. Fine β-SiC powder and Tyranno-SA fabrics used as the matrix for reinforcement, respectively. Different amounts of fine Al2O3–Y2O3 added liquid phase assisted sintering. For EPD, highly dispersed slurry was prepared adjusting zeta potentials constituent particles to ⩾+40 mV homogeneous deposition. The composite properties compared after using two different...
Hydroxyapatite (HA) has been introduced as a bone grafting material due to its similar composition that of natural bone, along with lack toxicity and high chemical stability, which prevent inflammatory or antigenic reactions. However, the porosity HA leads increased osteoconductive capacity implant, while reducing mechanical resistance hence limiting clinical use. Research on properties such superplasticity necessary solve these disadvantages. In this study, boron nitride (BN; 0, 2, 4 wt %)...